Related papers: Dielectron Production in C+C Collisions at 1 GeV/u…

Dilepton spectra in p+p and Au+Au collisions at RHIC

This work presents measurements of electron-positron pairs from p+p collisions at sqrt(s) = 200 GeV collected during the 2005 RHIC run and compares them to results from Au+Au collisions at sqrt(s_NN) = 200 GeV taken in 2004 with the PHENIX…

Nuclear Experiment · Physics 2008-10-24 Torsten Dahms

Dilepton production in proton-proton collisions at top RHIC energy

We study dielectron production in proton-proton collisions at top RHIC beam energy within an extended statistical hadronization model. The invariant mass spectrum of correlated dielectron pairs is evaluated in the low invariant mass region…

Nuclear Theory · Physics 2011-03-23 Jaakko Manninen , Elena Bratkovskaya , Wolfgang Cassing , Olena Linnyk

e+e- yields in Pb+Au collisions at 158 AGeV/c: Assessment of baryonic contributions

Using a hydrodynamic approach to describe Pb+Au collisions at 158 AGeV/c, we analyze e+e- yields from matter containing baryons in addition to mesons. We employ e+e- production rates from two independent calculations, which differ both in…

Nuclear Theory · Physics 2009-10-31 Pasi Huovinen , Madappa Prakash

Soft-dielectron excess in proton-proton collisions at $\sqrt{s}$ = 13 TeV

A measurement of dielectron production in proton-proton (pp) collisions at $\sqrt{s} = 13$ TeV, recorded with the ALICE detector at the CERN LHC, is presented in this Letter. The data set was recorded with a reduced magnetic solenoid field.…

Nuclear Experiment · Physics 2021-08-03 ALICE Collaboration

Dilepton production in proton-proton collisions at BEVALAC energies

The dilepton production in elementary ${pp\to e^{+}e^{-}X}$ reactions at BEVALAC energies $T_{lab}=1\div 5$ GeV is investigated. The calculations include direct ${e^{+}e^{-}}$ decays of the vector mesons $\rho ^{0}$, $\omega $, and $\phi $,…

Nuclear Theory · Physics 2008-11-26 Amand Faessler , C. Fuchs , M. I. Krivoruchenko , B. V. Martemyanov

Measurement of prompt D$^{0}$, $\Lambda_{c}^{+}$, and $\Sigma_{c}^{0,++}$(2455) production in pp collisions at $\sqrt{s} = 13$ TeV

The $p_{\rm T}$-differential production cross sections of prompt D$^{0}$, $\Lambda_{\rm c}^{+}$, and $\Sigma_{\rm c}^{0,++}(2455)$ charmed hadrons are measured at midrapidity ($|y| < 0.5$) in pp collisions at $\sqrt{s} = 13$ TeV. This is…

High Energy Physics - Experiment · Physics 2022-01-13 ALICE Collaboration

Two-photon production of dilepton pairs in peripheral heavy ion collisions

The STAR collaboration has observed an excess production of $e^+e^-$ pairs in relativistic heavy ion collisions, over the expectations from hadronic production models. The excess pairs have transverse momenta $p_T < 150\ {\rm MeV}/c$ and…

Nuclear Theory · Physics 2018-05-16 Spencer R. Klein

Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV

The first measurements of dielectron production at midrapidity ($|\eta_{\rm e}|<0.8$) in proton-proton and proton-lead collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV at the LHC are presented. The dielectron cross section is measured with the…

Nuclear Experiment · Physics 2026-02-19 ALICE Collaboration

Physics case for an $e^+e^-$ collider at 500 GeV and above

Some highlights of the physics case for running an $e^+e^-$ collider at 500 GeV and above are discussed with a particular emphasis on the experimental access to the Higgs potential via di-Higgs and (at sufficiently high energy) triple Higgs…

High Energy Physics - Phenomenology · Physics 2024-10-22 Philip Bechtle , Sven Heinemeyer , Jenny List , Gudrid Moortgat-Pick , Georg Weiglein

Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}} = 19.6$ and 200 GeV

The acceptance-corrected dielectron excess mass spectra, where the known hadronic sources have been subtracted from the inclusive dielectron mass spectra, are reported for the first time at mid-rapidity $|y_{ee}|<1$ in minimum-bias Au+Au…

High Energy Physics - Experiment · Physics 2015-09-25 STAR Collaboration , L. Adamczyk , J. K. Adkins , G. Agakishiev , M. M. Aggarwal , Z. Ahammed , I. Alekseev , J. Alford , A. Aparin , D. Arkhipkin , E. C. Aschenauer , G. S. Averichev , A. Banerjee , R. Bellwied , A. Bhasin , A. K. Bhati , P. Bhattarai , J. Bielcik , J. Bielcikova , L. C. Bland , I. G. Bordyuzhin , J. Bouchet , A. V. Brandin , I. Bunzarov , T. P. Burton , J. Butterworth , H. Caines , M. Calder'on de la Barca S'anchez , J. M. campbell , D. Cebra , M. C. Cervantes , I. Chakaberia , P. Chaloupka , Z. Chang , S. Chattopadhyay , J. H. Chen , X. Chen , J. Cheng , M. Cherney , W. Christie , M. J. M. Codrington , G. Contin , H. J. Crawford , S. Das , L. C. De Silva , R. R. Debbe , T. G. Dedovich , J. Deng , A. A. Derevschikov , B. di Ruzza , L. Didenko , C. Dilks , X. Dong , J. L. Drachenberg , J. E. Draper , C. M. Du , L. E. Dunkelberger , J. C. Dunlop , L. G. Efimov , J. Engelage , G. Eppley , R. Esha , O. Evdokimov , O. Eyser , R. Fatemi , S. Fazio , P. Federic , J. Fedorisin , Feng , P. Filip , Y. Fisyak , C. E. Flores , L. Fulek , C. A. Gagliardi , D. Garand , F. Geurts , A. Gibson , M. Girard , L. Greiner , D. Grosnick , D. S. Gunarathne , Y. Guo , S. Gupta , A. Gupta , W. Guryn , A. Hamad , A. Hamed , R. Haque , J. W. Harris , L. He , S. Heppelmann , A. Hirsch , G. W. Hoffmann , D. J. Hofman , S. Horvat , H. Z. Huang , X. Huang , B. Huang , P. Huck , T. J. Humanic , G. Igo , W. W. Jacobs , H. Jang , K. Jiang , E. G. Judd , S. Kabana , D. Kalinkin , K. Kang , K. Kauder , H. W. Ke , D. Keane , A. Kechechyan , Z. H. Khan , D. P. Kikola , I. Kisel , A. Kisiel , S. R. Klein , D. D. Koetke , T. Kollegger , L. K. Kosarzewski , L. Kotchenda , A. F. Kraishan , P. Kravtsov , K. Krueger , I. Kulakov , L. Kumar , R. A. Kycia , M. A. C. Lamont , J. M. Landgraf , K. D. Landry , J. Lauret , A. Lebedev , R. Lednicky , J. H. Lee , X. Li , X. Li , W. Li , Z. M. Li , Y. Li , C. Li , M. A. Lisa , F. Liu , T. Ljubicic , W. J. Llope , M. Lomnitz , R. S. Longacre , X. Luo , L. Ma , R. Ma , G. L. Ma , Y. G. Ma , N. Magdy , R. Majka , A. Manion , S. Margetis , C. Markert , H. Masui , H. S. Matis , D. McDonald , K. Meehan , N. G. Minaev , S. Mioduszewski , B. Mohanty , M. M. Mondal , D. A. Morozov , M. K. Mustafa , B. K. Nandi , Md. Nasim , T. K. Nayak , G. Nigmatkulov , L. V. Nogach , S. Y. Noh , J. Novak , S. B. Nurushev , G. Odyniec , A. Ogawa , K. Oh , V. Okorokov , D. L. Olvitt , B. S. Page , Y. X. Pan , Y. Pandit , Y. Panebratsev , T. Pawlak , B. Pawlik , H. Pei , C. Perkins , A. Peterson , P. Pile , M. Planinic , J. Pluta , N. Poljak , K. Poniatowska , J. Porter , M. Posik , A. M. Poskanzer , N. K. Pruthi , J. Putschke , H. Qiu , A. Quintero , S. Ramachandran , R. Raniwala , S. Raniwala , R. L. Ray , H. G. Ritter , J. B. Roberts , O. V. Rogachevskiy , J. L. Romero , A. Roy , L. Ruan , J. Rusnak , O. Rusnakova , N. R. Sahoo , P. K. Sahu , I. Sakrejda , S. Salur , A. Sandacz , J. Sandweiss , A. Sarkar , J. Schambach , R. P. Scharenberg , A. M. Schmah , W. B. Schmidke , N. Schmitz , J. Seger , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , M. Shao , M. K. Sharma , B. Sharma , W. Q. Shen , S. S. Shi , Q. Y. Shou , E. P. Sichtermann , R. Sikora , M. Simko , M. J. Skoby , N. Smirnov , D. Smirnov , D. Solanki , L. Song , P. Sorensen , H. M. Spinka , B. Srivastava , T. D. S. Stanislaus , R. Stock , M. Strikhanov , B. Stringfellow , M. Sumbera , B. J. Summa , Y. Sun , Z. Sun , X. M. Sun , X. Sun , B. Surrow , D. N. Svirida , M. A. Szelezniak , J. Takahashi , A. H. Tang , Z. Tang , T. Tarnowsky , A. N. Tawfik , J. H. Thomas , A. R. Timmins , D. Tlusty , M. Tokarev , S. Trentalange , R. E. Tribble , P. Tribedy , S. K. Tripathy , B. A. Trzeciak , O. D. Tsai , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , G. van Nieuwenhuizen , M. Vandenbroucke , R. Varma , A. N. Vasiliev , R. Vertesi , F. Videbæk , Y. P. Viyogi , S. Vokal , S. A. Voloshin , A. Vossen , Y. Wang , F. Wang , H. Wang , J. S. Wang , G. Wang , Y. Wang , J. C. Webb , G. Webb , L. Wen , G. D. Westfall , H. Wieman , S. W. Wissink , R. Witt , Y. F. Wu , Z. Xiao , W. Xie , K. Xin , Z. Xu , Q. H. Xu , N. Xu , H. Xu , Y. F. Xu , Y. Yang , C. Yang , S. Yang , Q. Yang , Y. Yang , Z. Ye , P. Yepes , L. Yi , K. Yip , I. -K. Yoo , N. Yu , H. Zbroszczyk , W. Zha , J. B. Zhang , X. P. Zhang , S. Zhang , J. Zhang , Z. Zhang , Y. Zhang , J. L. Zhang , F. Zhao , J. Zhao , C. Zhong , L. Zhou , X. Zhu , Y. Zoulkarneeva , M. Zyzak

Frozen motion model and dilepton production from 200A GeV S+W collisions at CERN SPS

We have analysed the invariant mass distribution of dileptons in S+W collisions at 200A GeV as measured by the HELIOS-3 collaboration at CERN SPS. Three scenarios were considered where the collision lead to formation of (i) the quark-gluon…

Nuclear Theory · Physics 2007-05-23 A. K. Chaudhuri

Upsilon production in U+U collisions at 193 GeV with the STAR experiment

We present a measurement of the inclusive production of Upsilon mesons in U+U collisions at 193 GeV at mid-rapidity (|y| < 1). Previous studies in central Au+Au collisions at 200 GeV show a suppression of Upsilon(1S+2S+3S) production…

Nuclear Experiment · Physics 2016-12-20 STAR Collaboration , L. Adamczyk , J. K. Adkins , G. Agakishiev , M. M. Aggarwal , Z. Ahammed , I. Alekseev , D. M. Anderson , R. Aoyama , A. Aparin , D. Arkhipkin , E. C. Aschenauer , M. U. Ashraf , A. Attri , G. S. Averichev , X. Bai , V. Bairathi , R. Bellwied , A. Bhasin , A. K. Bhati , P. Bhattarai , J. Bielcik , J. Bielcikova , L. C. Bland , I. G. Bordyuzhin , J. Bouchet , J. D. Brandenburg , A. V. Brandin , I. Bunzarov , J. Butterworth , H. Caines , M. Calderón de la Barca Sánchez , J. M. Campbell , D. Cebra , I. Chakaberia , P. Chaloupka , Z. Chang , A. Chatterjee , S. Chattopadhyay , J. H. Chen , X. Chen , J. Cheng , M. Cherney , W. Christie , G. Contin , H. J. Crawford , S. Das , L. C. De Silva , R. R. Debbe , T. G. Dedovich , J. Deng , A. A. Derevschikov , L. Didenko , C. Dilks , X. Dong , J. L. Drachenberg , J. E. Draper , C. M. Du , L. E. Dunkelberger , J. C. Dunlop , L. G. Efimov , J. Engelage , G. Eppley , R. Esha , S. Esumi , O. Evdokimov , O. Eyser , R. Fatemi , S. Fazio , P. Federic , J. Fedorisin , Z. Feng , P. Filip , E. Finch , Y. Fisyak , C. E. Flores , L. Fulek , C. A. Gagliardi , D. Garand , F. Geurts , A. Gibson , M. Girard , L. Greiner , D. Grosnick , D. S. Gunarathne , Y. Guo , A. Gupta , S. Gupta , W. Guryn , A. I. Hamad , A. Hamed , R. Haque , J. W. Harris , L. He , S. Heppelmann , S. Heppelmann , A. Hirsch , G. W. Hoffmann , S. Horvat , H. Z. Huang , B. Huang , T. Huang , X. Huang , P. Huck , T. J. Humanic , G. Igo , W. W. Jacobs , A. Jentsch , J. Jia , K. Jiang , S. Jowzaee , E. G. Judd , S. Kabana , D. Kalinkin , K. Kang , K. Kauder , H. W. Ke , D. Keane , A. Kechechyan , Z. Khan , D. P. Kikoła , I. Kisel , A. Kisiel , L. Kochenda , D. D. Koetke , L. K. Kosarzewski , A. F. Kraishan , P. Kravtsov , K. Krueger , L. Kumar , M. A. C. Lamont , J. M. Landgraf , K. D. Landry , J. Lauret , A. Lebedev , R. Lednicky , J. H. Lee , Y. Li , C. Li , X. Li , W. Li , X. Li , T. Lin , M. A. Lisa , F. Liu , Y. Liu , T. Ljubicic , W. J. Llope , M. Lomnitz , R. S. Longacre , X. Luo , S. Luo , G. L. Ma , R. Ma , L. Ma , Y. G. Ma , N. Magdy , R. Majka , A. Manion , S. Margetis , C. Markert , H. S. Matis , D. McDonald , S. McKinzie , K. Meehan , J. C. Mei , Z. W. Miller , N. G. Minaev , S. Mioduszewski , D. Mishra , B. Mohanty , M. M. Mondal , D. A. Morozov , M. K. Mustafa , B. K. Nandi , Md. Nasim , T. K. Nayak , G. Nigmatkulov , T. Niida , L. V. Nogach , T. Nonaka , J. Novak , S. B. Nurushev , G. Odyniec , A. Ogawa , K. Oh , V. A. Okorokov , D. Olvitt , B. S. Page , R. Pak , Y. X. Pan , Y. Pandit , Y. Panebratsev , B. Pawlik , H. Pei , C. Perkins , P. Pile , J. Pluta , K. Poniatowska , J. Porter , M. Posik , A. M. Poskanzer , N. K. Pruthi , M. Przybycien , J. Putschke , H. Qiu , A. Quintero , S. Ramachandran , R. L. Ray , R. Reed , M. J. Rehbein , H. G. Ritter , J. B. Roberts , O. V. Rogachevskiy , J. L. Romero , J. D. Roth , L. Ruan , J. Rusnak , O. Rusnakova , N. R. Sahoo , P. K. Sahu , I. Sakrejda , S. Salur , J. Sandweiss , A. Sarkar , J. Schambach , R. P. Scharenberg , A. M. Schmah , W. B. Schmidke , N. Schmitz , J. Seger , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , M. Shao , M. K. Sharma , A. Sharma , B. Sharma , W. Q. Shen , Z. Shi , S. S. Shi , Q. Y. Shou , E. P. Sichtermann , R. Sikora , M. Simko , S. Singha , M. J. Skoby , D. Smirnov , N. Smirnov , W. Solyst , L. Song , P. Sorensen , H. M. Spinka , B. Srivastava , T. D. S. Stanislaus , M. Stepanov , R. Stock , M. Strikhanov , B. Stringfellow , T. Sugiura , M. Sumbera , B. Summa , Y. Sun , Z. Sun , X. M. Sun , B. Surrow , D. N. Svirida , Z. Tang , A. H. Tang , T. Tarnowsky , A. Tawfik , J. Thäder , J. H. Thomas , A. R. Timmins , D. Tlusty , T. Todoroki , M. Tokarev , S. Trentalange , R. E. Tribble , P. Tribedy , S. K. Tripathy , O. D. Tsai , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , G. van Nieuwenhuizen , R. Varma , A. N. Vasiliev , R. Vertesi , F. Videbæk , S. Vokal , S. A. Voloshin , A. Vossen , G. Wang , J. S. Wang , F. Wang , Y. Wang , Y. Wang , J. C. Webb , G. Webb , L. Wen , G. D. Westfall , H. Wieman , S. W. Wissink , R. Witt , Y. Wu , Z. G. Xiao , G. Xie , W. Xie , K. Xin , Z. Xu , H. Xu , N. Xu , J. Xu , Y. F. Xu , Q. H. Xu , Y. Yang , Y. Yang , S. Yang , Q. Yang , Y. Yang , C. Yang , Z. Ye , Z. Ye , L. Yi , K. Yip , I. -K. Yoo , N. Yu , H. Zbroszczyk , W. Zha , J. Zhang , Z. Zhang , J. Zhang , S. Zhang , X. P. Zhang , J. B. Zhang , Y. Zhang , S. Zhang , J. Zhao , C. Zhong , L. Zhou , X. Zhu , Y. Zoulkarneeva , M. Zyzak

Low-mass e+e- pair production in 158 A GeV Pb-Au collisions at the CERN SPS, its dependence on multiplicity and transverse momentum

We report a measurement of low-mass electron pairs observed in 158 GeV/nucleon Pb-Au collisions. The pair yield integrated over the range of invariant masses 0.2 < m < 2.0 GeV is enhanced by a factor of 3.5 +/- 0.4 (stat) +/- 0.9 (syst)…

Nuclear Experiment · Physics 2015-06-26 NA45 Collaboration , G. Agakichiev et al

Search for Anomalous Production of Di-lepton Events with Missing Transverse Momentum in e^+e^- Collisions at sqrt{s} = 161 and 172 GeV

Events containing a pair of charged leptons and significant missing transverse momentum are selected from a data sample corresponding to a total integrated luminosity of 20.6 pb^-1 at centre-of-mass energies of 161 GeV and 172 GeV. The…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL Collaboration , K. Ackerstaff et al

Dielectron production in proton-proton collisions at $\sqrt{s} = 7$ TeV with ALICE

The ALICE Collaboration measured dielectron production as a function of the invariant mass ($m_{\rm ee}$), the pair transverse momentum ($p_{\rm T,ee}$) and the pair distance of closest approach ($\rm DCA_{ee}$) in pp collisions at…

Nuclear Experiment · Physics 2019-04-17 Horst Sebastian Scheid

Dilepton production and reaction dynamics in heavy-ion collisions at SIS energies from coarse-grained transport simulations

Dilepton invariant-mass spectra for heavy-ion collisions at SIS 18 and BEVALAC energies are calculated using a coarse-grained time evolution from the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model. The coarse-graining of the…

Nuclear Theory · Physics 2015-08-04 Stephan Endres , Hendrik van Hees , Janus Weil , Marcus Bleicher

Dilepton production and $m_T$-scaling at BEVALAC/SIS energies

We present a dynamical study of $e^+e^-$ production in C + C and Ca + Ca collisions at BEVALAC/SIS energies on the basis of the covariant transport approach HSD employing momentum-dependent $\rho$-meson spectral functions that include the…

Nuclear Theory · Physics 2009-10-30 E. L. Bratkovskaya , W. Cassing , R. Rapp , J. Wambach

$\eta$ meson reconstruction in pp reactions at 2.2 GeV with HADES

The HADES spectrometer installed at GSI Darmstadt is devoted to study the production of di-electron pairs from proton, pion and nucleus induced reactions at 1-2 AGeV. In pp collisions at 2.2 GeV we have focused mainly on exclusive…

High Energy Physics - Experiment · Physics 2019-08-14 S. Spataro

Enhancement of the dielectron continuum in sqrt{s_NN} = 200 GeV Au+Au collisions

The PHENIX experiment has measured the dielectron continuum in sqrt{s_NN} = 200 GeV Au+Au collisions. In minimum bias collisions the dielectron yield in the mass range between 150 and 750 MeV/c^2 is enhanced by a factor of 3.4 +/-…

Nuclear Experiment · Physics 2007-06-21 PHENIX Collaboration , S. Afanasiev

Inclusive e$^+$e$^-$ production in collisions of pions with protons and nuclei in the second resonance region of baryons

Inclusive e$^+$e$^-$ production has been studied with HADES in $\pi^-$ + p, $\pi^-$ + C and $\pi^- + \mathrm{CH}_2$ reactions, using the GSI pion beam at $\sqrt{s_{\pi p}}$ = 1.49 GeV. Invariant mass and transverse momentum distributions…

Nuclear Experiment · Physics 2023-09-26 R. Abou Yassine , J. Adamczewski-Musch , O. Arnold , E. T. Atomssa , M. Becker , C. Behnke , J. C. Berger-Chen , A. Blanco , C. Blume , M. Böhmer , L. Chlad , P. Chudoba , I. Ciepał , S. Deb , C. Deveaux , D. Dittert , J. Dreyer , E. Epple , L. Fabbietti , P. Fonte , C. Franco , J. Friese , I. Fröhlich , J. Förtsch , T. Galatyuk , J. A. Garzón , R. Gernhäuser , R. Greifenhagen , M. Grunwald , M. Gumberidze , S. Harabasz , T. Heinz , T. Hennino , C. Höhne , F. Hojeij , R. Holzmann , M. Idzik , B. Kämpfer , K-H. Kampert , B. Kardan , V. Kedych , I. Koenig , W. Koenig , M. Kohls , J. Kolas , B. W. Kolb , G. Korcyl , G. Kornakov , R. Kotte , W. Krueger , A. Kugler , T. Kunz , R. Lalik , K. Lapidus , S. Linev , F. Linz , L. Lopes , M. Lorenz , T. Mahmoud , L. Maier , A. Malige , J. Markert , S. Maurus , V. Metag , J. Michel , D. M. Mihaylov , V. Mikhaylov , A. Molenda , C. Müntz , R. Münzer , M. Nabroth , L. Naumann , K. Nowakowski , J. Orliński , J. -H. Otto , Y. Parpottas , M. Parschau , C. Pauly , V. Pechenov , O. Pechenova , K. Piasecki , J. Pietraszko , T. Povar , P. Prościnki , A. Prozorov , W. Przygoda , K. Pysz , B. Ramstein , N. Rathod , P. Rodriguez-Ramos , A. Rost , A. Rustamov , P. Salabura , T. Scheib , N. Schild , K. Schmidt-Sommerfeld , H. Schuldes , E. Schwab , F. Scozzi , F. Seck , P. Sellheim , J. Siebenson , L. Silva , U. Singh , J. Smyrski , S. Spataro , S. Spies , M. Stefaniak , H. Ströbele , J. Stroth , C. Sturm , K. Sumara , O. Svoboda , M. Szala , P. Tlusty , M. Traxler , H. Tsertos , O. Vazquez-Doce , V. Wagner , A. A. Weber , C. Wendisch , M. G. Wiebusch , J. Wirth , A Wladyszewska , H. P. Zbroszczyk , E. Zherebtsova , M. Zielinski , P. Zumbruch